package com.spring.util;


import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class HtmlUtil {  
    private static final String regEx_script = "<script[^>]*?>[\\s\\S]*?<\\/script>"; // 定义script的正则表达式  
    private static final String regEx_style = "<style[^>]*?>[\\s\\S]*?<\\/style>"; // 定义style的正则表达式  
    private static final String regEx_html = "<[^>]+>"; // 定义HTML标签的正则表达式  
    private static final String regEx_space = "\\s*|\t|\r|\n";//定义空格回车换行符  
      
    /** 
     * @param htmlStr 
     * @return 
     *  删除Html标签 
     */  
    public static String delHTMLTag(String htmlStr) {  
        Pattern p_script = Pattern.compile(regEx_script, Pattern.CASE_INSENSITIVE);  
        Matcher m_script = p_script.matcher(htmlStr);  
        htmlStr = m_script.replaceAll(""); // 过滤script标签  
  
        Pattern p_style = Pattern.compile(regEx_style, Pattern.CASE_INSENSITIVE);  
        Matcher m_style = p_style.matcher(htmlStr);  
        htmlStr = m_style.replaceAll(""); // 过滤style标签  
  
        Pattern p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);  
        Matcher m_html = p_html.matcher(htmlStr);  
        htmlStr = m_html.replaceAll(""); // 过滤html标签  
  
//        Pattern p_space = Pattern.compile(regEx_space, Pattern.CASE_INSENSITIVE);  
//        Matcher m_space = p_space.matcher(htmlStr);  
//        htmlStr = m_space.replaceAll(""); // 过滤空格回车标签  
        return htmlStr.trim(); // 返回文本字符串  
    }  
      
    public static String getTextFromHtml(String htmlStr){  
    	
    	htmlStr=htmlStr.replaceAll("&amp;", "&");
    	htmlStr=htmlStr.replaceAll("&lt;", "<");
    	htmlStr=htmlStr.replaceAll("&gt;", ">");
    	htmlStr=htmlStr.replaceAll("&amp;", "&");
    	htmlStr=htmlStr.replaceAll("&nbsp;", " ");
    	htmlStr = htmlStr.replaceAll("&ldquo;", "“");
    	htmlStr = htmlStr.replaceAll("&rdquo;", "”");

		
        htmlStr = delHTMLTag(htmlStr);  
        htmlStr = htmlStr.substring(0, htmlStr.length());  
        return htmlStr;  
    }
} 